S
M
T
W
T
F
S
26
61°
32°
27
66°
35°
28
67°
41°
29
73°
41°
30
76°
43°
1
75°
48°
2
78°
50°
3
82°
48°
4
82°
55°
5
78°
52°
6
84°
52°
7
78°
53°
8
74°
50°
9
78°
44°
10
75°
54°
11
74°
49°
12
76°
46°
13
67°
52°
14
68°
47°
15
57°
42°
16
58°
37°
17
66°
46°
18
69°
43°
19
68°
44°
20
73°
47°
21
71°
45°
22
76°
48°
23
81°
54°
24
81°
54°
25
78°
58°
26
68°
53°
27
81°
57°
28
91°
58°
29
78°
50°
30
70°
46°
31
73°
52°
1
70°
52°
2
72°
54°
3
76°
55°
4
75°
51°
5
72°
50°
6
61°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Summerland
Summerland's May 2026 forecast shows daily high temperatures ranging from 61° to 76°, with overnight lows between 46° and 55°. The average high for May is 71° with an average low of 51°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Summerland. See also: June | July | August.
